Philadelphia Weather, Forecast, Maps and Doppler Radar | NBC 10 Philadelphia
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We're not yet halfway through the predicted duration of this heat wave. NBC10 First Alert Meteorologist Krystal Klei has the sweltering forecast through the week, when high temps may break records.

Today's Forecast
Dangerous heat for the weekend and into next week. A First Alert is issued for a feel-like temperatures between 100 and 107°. Read more »

Interactive Radar and Maps

Hourly Forecast

  • 7PM
    91°
    0%
  • 8PM
    87°
    0%
  • 9PM
    84°
    0%
  • 10PM
    83°
    0%
  • 11PM
    82°
    0%
  • 12AM
    81°
    0%
  • 1AM
    80°
    0%
  • 2AM
    79°
    10%
  • 3AM
    79°
    30%
  • 4AM
    79°
    30%
  • 5AM
    78°
    20%
  • 6AM
    78°
    50%
  • 7AM
    78°
    50%
  • 8AM
    80°
    20%
  • 9AM
    83°
    20%
  • 10AM
    86°
    20%
  • 11AM
    90°
    20%
  • 12PM
    92°
    20%
  • 1PM
    94°
    20%
  • 2PM
    95°
    20%
  • 3PM
    96°
    20%
  • 4PM
    95°
    20%
  • 5PM
    94°
    20%
  • 6PM
    92°
    20%
« »

10 Day Forecast

  • Today
    Mostly Sunny
    97°
    77°
    0%
    DETAILS +

    Forecast

    Mostly sunny. Highs in the mid 90s and lows in the low 70s.

    UV 9
    Humidity 43
    Wind 7 NNW

    DETAILS -

  • Monday
    Scattered T-storms
    99°
    76°
    40%
    DETAILS +

    Forecast

    Thunderstorms in the afternoon. Highs 98 to 102F and lows in the mid 70s.

    UV 9
    Humidity 52
    Wind 9 SSW

    DETAILS -

  • Tuesday
    Mostly Sunny
    96°
    74°
    50%
    DETAILS +

    Forecast

    Thunderstorms developing in the afternoon. Highs in the mid 90s and lows in the mid 70s.

    UV 8
    Humidity 56
    Wind 6 WSW

    DETAILS -

  • Wednesday
    Mostly Sunny
    94°
    74°
    10%
    DETAILS +

    Forecast

    Mostly sunny. Highs in the low 90s and lows in the low 70s.

    UV 9
    Humidity 50
    Wind 6 WSW

    DETAILS -

  • Thursday
    Scattered T-storms
    92°
    73°
    40%
    DETAILS +

    Forecast

    Thunderstorms developing in the afternoon. Highs in the low 90s and lows in the low 70s.

    UV 9
    Humidity 60
    Wind 6 WSW

    DETAILS -

  • Friday
    Scattered T-storms
    90°
    73°
    40%
    DETAILS +

    Forecast

    Scattered thunderstorms. Highs in the low 90s and lows in the low 70s.

    UV 8
    Humidity 63
    Wind 6 WSW

    DETAILS -

  • Saturday
    Scattered T-storms
    88°
    73°
    60%
    DETAILS +

    Forecast

    Scattered thunderstorms. Highs in the low 90s and lows in the mid 70s.

    UV 7
    Humidity 68
    Wind 6 WSW

    DETAILS -

  • Sunday
    Scattered T-storms
    87°
    73°
    40%
    DETAILS +

    Forecast

    Showers possible. Highs in the upper 80s and lows in the low 70s.

    UV 7
    Humidity 65
    Wind 6 WSW

    DETAILS -

  • Monday
    Scattered T-storms
    88°
    72°
    20%
    DETAILS +

    Forecast

    A few thunderstorms possible. Highs in the upper 80s and lows in the low 70s.

    UV 9
    Humidity 57
    Wind 6 WSW

    DETAILS -

  • Tuesday
    Partly Cloudy
    88°
    67°
    10%
    DETAILS +

    Forecast

    Chance of showers. Highs in the mid 80s and lows in the upper 60s.

    UV 9
    Humidity 52
    Wind 6 WSW

    DETAILS -

« »

Historical Data

  • Avg. High
  • Avg. Low
  • Mean
  • Record
    High
  • Record
    Low
  • Rec.
    High Date
  • Rec.
    Low Date
  • 86°
  • 71°
  • 78°
  • 95°
  • 57°
  • 07-24-1987
  • 07-24-1985

1 Day Pollen Forecast

  • Tree: Low

  • Grass: Moderate

  • Weed: Moderate

  • Mold: Very High

Buoy

Name Lat, Long Dist Report Time Air Temp Water Temp Pres PTDY Wind Speed Wind Gust Wind Dir Wave Height Wave Period
Buoy phbp1 39.93, -75.14 5.71 072421 95.54 82.40 1013.1 * * * * * *
Buoy bdrn4 40.08, -74.87 58.33 072421 91.94 83.66 1013.3 * 16.6 18.4 270 * *
Buoy nblp1 40.14, -74.75 83.17 072421 91.76 84.56 1014.0 * 9.4 11.2 220 * *
Buoy deld1 39.58, -75.59 112.47 072421 86 83.30 1014.6 * 9.4 14.8 150 * *
Buoy rdyd1 39.56, -75.57 113.68 072418 93.56 83.48 1014.6 * * * * * *
.00
.00
.00
.00
.00
.00
Pres (Pressure and PTDY (Pressure Tendency) in inches

2 - Day Wave Forecast

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